Why was I charged a service fee?

I'm curious to understand why I was charged a service fee. Can you clarify the reasons behind this additional cost? Is it a standard practice in the cryptocurrency and finance industry, or is it specific to your platform? I'd like to have a better understanding of the services that this fee covers and how it contributes to my overall transaction experience. Additionally, are there any ways to minimize or avoid this fee in the future? Your insight would be greatly appreciated.